Ingredients for black powder are relatively inert when unmixed. Years ago, sodium nitrate replaced saltpeter as the key ingredient in black blasting powder. This improved powder was developed by Lammot, grandson of the founder of the DuPont...

A new understanding of how metals wear under friction and how to reduce this problem, may come from fundamental research being carried out at DuPont's Experimental Station, one of the largest centers of research in the world. It spreads over 95...

This is an Atlas mixing machine, used in the manufacture of dynamite at Repauno about 1895. The box in the foreground contains inert ingredients which are placed in the trough. Nitroglycerin is added from the containers shown on the cart at the...